Here's another useful homily in accord with 1Cor 11:26.
● John 3:14-17 . . As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up; that whoever believes may in him have eternal life. For God so loved the world, that He gave His only begotten son, that whoever believes in him should not perish, but have eternal life.
The incident to which Christ referred is located at Num 21:5-9. Long story short: Moses' people became weary of eating manna all the time at every meal. But instead of courteously, and diplomatically, petitioning their divine benefactor for a different diet, they became hostile and confrontational; angrily demanding tastier food.
In response to their insolence, and their ingratitude for His providence; God sent a swarm of deadly poisonous vipers among them; which began striking people; and every strike was 100% fatal, no exceptions.
After a number of people died, the rest came to their senses and begged Moses to intercede. In reply; The Lord instructed Moses to fashion an image of the vipers and hoist it up on a pole in plain view so that everyone dying from venom could look to the image for relief.
The key issue here is that the image was the only God-given remedy for the people's bites-- not sacrifices and offerings, not tithing, not church attendance, not scapulars, not confession, not holy days of obligation, not the Sabbath, not the golden rule, not charity, not Bible study and/or Sunday school, not self denial, not vows of poverty, not the Ten Commandments, not one's religion of choice, no; not even prayers. The image was it; nothing else would suffice to save their lives.
As an allegory, the brazen serpent indicates that Christ's crucifixion for the sins of the world is the only God-given rescue from the wrath of God; and when people accept it, then according to John 3:14-17 and John 5:24, they qualify for a transfer from death into life. Those who reject his crucifixion as the only God-given rescue from the sum of all fears, are already on the docket to face it.
● John 3:18 . .Whoever believes in him is not condemned, but whoever does not believe stands condemned already because he has not believed in the name of God's one and only Son.
» His son's "name" in this case is relative to the brazen serpent incident.